The problem is that people aren't taking the precautionary measures seriously. People are still going out even though they aren't allowed because of the risk of contracting and spreading the virus. If government are less lenient to people like this and rule as an embodiment of law then they might discipline this people.
Yes, you are right, many people still underestimate all of this.
I think warning is not enough to convince and discipline such people, there must be firm action to bring society into discipline.